Improvement in gas apparatus



2 Sheets--Sheet1.

L SUBMDN. Gas'Apparatus.

Patented Oct. 5,1875.

V EN

N. FErERs, PHOTO-LITHQGRAPHER, WASHINGTON. D C

NITED STA.

IMPROVEMENT IN GAS APPARATUS.

Specification forming part of Letters Patent No. 168,539, dated October 5, 1875; application filed June 3, 1875.

shown in the accompanying drawing, which I will now proceed to describe.

Figure l is a front elevation, partly in section, of my improved apparatus. Fig. 2 is a longitudinal section of the retort and furnace. Fig. 3 is a side elevation, partly in section, of the gasrholder in Fig. 1; and Fig. at is a horizontal section of the purifier on the plane of the connecting-doors.

Like letters indicate the same parts throughout the drawing.

The stove or furnace or, wherein the retort b is placed, is preferably built of brick-work, and with its bottom a arranged very close to the under side of the retort. The latter is preferably made of iron, and would be liable to rapid destruction by the heat of the furnace but for the arrangement herein described, whereby its destruction is, in a great measure, prevented. 1 construct the stove a with a flue, M, at the back of the retort, leading to the chimney a and which is so arranged, in connection with the chamber a surrounding the retort, as to cause the flame to travel around the same and ascend the saidflue. The chimney is provided with a regulator consisting of three perforated plates, which cause a strong draft, and may be turned or adjusted by means of a handle, 0, to act as a damper.. The said retort is made T-shaped,.as clearly shown in Fig. 2. It is placed in the furnace or stove with the vertical stem or branch 12 upward, the said stem being provided with a flange, to receive the ascension-pipe d. The inside of this vertical stem is provided with a series of cups or bowls, b The tar that rises with the gas from the retort is caught by these cups or bowls, and, running down their sides, falls back into the retort, and by this contrivance the tar, which in the ordinary apparatus'for making gas enters the hydraulic main, is compelled to return into the hottest part of the reinstances I fit inside the retort, at the bottom of the aforesaid stem or branch I), a portable sliding frame, constructed of angular iron bars, arranged horizontally, and which, by preventing the passing of the tar and other matters with the gas to the said bowls, protects them from corrosion. The body or horizontal portion of the said retort may be cylindrica-l, as shown, or may have an oval or other suitable transverse sectional .form. The front of the said retort b is provided with themouthpiece 6, which is secured to the retort by bolts passed through flanges, or by other suitable fastenings. The said mouth piece is constructed with a flange, 0 in which. is formed a circular V-shaped groove or channel, 0 The cover it has a V-shaped rib or projection, h formed to enter and fit the said groove or channel, and when the cover h is in place on the mouth-piece, this groove and projection will make the joint perfectly tight without luting or cement. Over the said mouth-piece I placea clamp-bar or brace, i, which is fitted with a lever, j, and screw is, or with a ratchetwheel or other suitable mechanism for securing the cover hupou the mouthpiece, and permitting the ready removal and replacing of the said cover. This barz' is shown detached in Fig. 2.

My improved apparatus is provided with a purifier, l, constructed with a series of chambers, Z Z l Z Z which must be partly filled with lime and water. Each of these chambers has aself-acting door, m, supported on hinges, and so arranged that it is partially below the surface of the lime and water. Inside the chamber Z I form an inner chamber or compartment, n, filled with a mass of small iron wire, saturated with sal-ammoniac.

purifier is also provided with two cocks, 0 p. The lower cock, 0, serves the purpose ofadmitting air to the said chamber, while the upper cock, p, serves as an outlet for the same. These cocks afford the means for reviving the properties of the materials in the said cham- ATENT FFICE,

The

- the purifier.

by pipes s to the gas-holder.

bers, and therefore economize the working of The above-described iron wire and sal-ammoniac will be found far superior to the oxide of iron commonly used in gas apparatus. The inlet-pipe q is provided with .a

- self-acting door or valve, which prevents the return of any gas from the purifier through the said pipe. The said purifier is connected The latter is constructed of sheet-iron or other suitable material, and may have any convenient capacity. the top, instead of the usual pipe at the bottom, for conducting the gas to the servicepipes. The outer part t of this pipe is provided with a screw, t whereby the inner part it may be held fast, and the holder supported at any height, so that when no gas is being porting the holder, may be employed. 7

It has a telescopic outlet-pipe, t t at I claim as my invention-- 1. In combination, the retort b, the branch I), and the series of cups or bowls b constructed and arranged substantially as described.

2. The purifier l, constructed with compartments or chambers Z l l 1 i provided with self-acting doors m, and .with the inner chamber n, as herein described, and for the purpose specified.

3. The method or process of purifying gas by the use of iron wire saturated by sal-ammoniac, in the purifier of a gas apparatus, for the purpose specified.

4:. The apparatus for manufacturing gas, consisting of the furnace a, retort b, purifier l, and gas-holder, above described, and their fittings and connections, as shown, or the equivalents thereof, constructed, combined, and operating as herein set forth.

HENRY JAMES SURMON.

Witnesses:

WM. R0121. LAKE, HENRY JAMES NooN. 

